| |
|
|
| |
 |
| Frequency Polygon |
 |
| In a frequency distribution, the mid-value of each class is obtained. Then on the graph paper, the frequency is plotted against the corresponding mid-value. These points are joined by straight lines. These straight lines may be extended in both directions to meet the X - axis to form a polygon. |
| |
 |
| |
| The weights of 50 students are recorded below. Draw a frequency polygon for this data. |
| |
 |
| |
 |
| |
 |
| |
 |
| |
| The marks scored by 120 students in an examination are as given in the table form a frequency polygon. |
| |
 |
| |
 |
| |
 |
| |
 |
| |
| If the above graph is joined by a smooth curve, then it is known as a frequency curve. |
| |
|
|
| |
|
|
| |
|
|
|
|
|
Get FREE Live Tutoring
(No credit card required)
Customer Care
Click to get customer service, technical support and subscription help.
Refer-A-Friend
Get One Month Free!
When you refer a friend
|
|
|